Shills have been involved in many operations to control the narratives people are exposed to the whole time. This is some very good background about those kinds of events here on reddit.

The article is rich in links about how what happened with the Pizzagate sub and how paid pro-Hillary shills used dysinfo tactics to make people forget the shaddy stuff she was involved in, attack Bernie supporters and how Wikileaks said that the primaries were rigged against him.